Higher Koszul algebras and the ( Fg ) -condition

Determining when a finite dimensional algebra satisfies the finiteness property known as the ( Fg ) -condition is of fundamental importance in the celebrated and influential theory of support varieties. We give an answer to this question for higher Koszul algebras, generalizing a result by Erdmann and Solberg. This allows us to establish a strong connection between the ( Fg ) -condition and higher homological algebra, which significantly extends the classes of algebras for which it is known whether the ( Fg ) -condition is satisfied. In particular, we show that the condition holds for an important class of algebras arising from consistent dimer models.

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Publication Details

Journal
Annals of representation theory
Published
2026-10-19
DOI
https://doi.org/10.5802/art.48
Primary Topic
Algebraic structures and combinatorial models
Type
article
Field-Weighted Citation Impact
0.00
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article

Higher Koszul algebras and the ( Fg ) -condition

Johanne Haugland, Mads Hustad Sandøy
Annals of representation theory
Algebraic structures and combinatorial models
article

Higher Koszul algebras and the ( Fg ) -condition

Johanne Haugland, Mads Hustad Sandøy
article en

Abstract

Determining when a finite dimensional algebra satisfies the finiteness property known as the ( Fg ) -condition is of fundamental importance in the celebrated and influential theory of support varieties. We give an answer to this question for higher Koszul algebras, generalizing a result by Erdmann and Solberg. This allows us to establish a strong connection between the ( Fg ) -condition and higher homological algebra, which significantly extends the classes of algebras for which it is known whether the ( Fg ) -condition is satisfied. In particular, we show that the condition holds for an important class of algebras arising from consistent dimer models.

Annals of representation theoryVol. 3(3)
Department of Mathematical Sciences (RU), Ruhr University Bochum (DE)
Openalex Percentile: Top 7%
Algebraic structures and combinatorial models
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